Compressed-air water-elevator.



A. 0. BROWN.

COMPRESSED AIR WATER BLEVATOR.

APPLIOATION FILED 00T.24, 1911.

Patented July 9, 1912.

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ARTHUR O. BRUWN, F CHICAGO, ILLINOIS.

COlVIPRESSED-AIR 'l/VATER-ELEVATOR.

To all ytti/0m it may concern lle it known thatl, Altri-inn O. lluown, citizen ot the United States, residing at. Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Conipressediiil lilfater-llllevators, ot which the following is a specilication.

This invention relates to that class oi' water elevators which are operated by coinpressed air, a submerged air-tight tank b'eing provided into which the water 'llows and trein which it is expelled by air pressure.

ik lioat actuated valve is provided t'or controlling the flow ot air into the tank, and the presentinvention relates niore particularly to the valve actuating inechanisin, its object being to provide a inechanisn'l which is reliable in operation and devoid of complicated parts to get out ot order.

llVith these objects in view, the invention consists in a novel construction and arrange-nient ot' parts to be hereinafter described and claimed, reference being had 'to the accompanying drawing in which,

Figure 1 is an elevation of the apparatus, partly in section. Fig. 2 .is a cross section on the line. 2 2 oit Fig. 1.

Referring specifically to the drawing, 5 denotes a tank or other suitable receptacle which is submerged in the well o-r other source of water supply. In the bottoni of the tank is an inlet t5 which has an inwardlyv opening valve 7. rlihis valve opens when the airpressure is oli", and allows the-water troni the well to tlow into the tank. rlhe water outlet ot the tank is a pipe S extending thereinto and terminating close to the bottom thereof, the lower or inlet end ot said pipe being provided with a check valve 8a to prevent a back-tlow into the tank. rlhe pipe ,8 is suitably connected to the house or other place where the water is to be used. 'lhe tank may be of any size, according to the desired capacity of the apparatus, and the size oit the well or other water supply.

The compressed air is delivered into the tank 5 through a. pipe 9, said pipe entering the tank through the top thereof, and depending tor a short, distance thereinto. rlfhe air supply will be connected to a suitable source of compressed air, which has not been illustrated, as it torins no part of the present invention.

To the lo-wer end of the air pipe El, within the tank, is pivoted, as indicated at 10, a

Specification of Letters Patent.

Application filed October 24, 1911.

Patented July Q1, 1912. seiai No. 656,370.

traine 11, the pivot being intermediate the ends ot the traine. Slidably mounted in the traine between stops 12, at the ends thereof, is a tube 13 inclosing a ball or other shiftable weighted ineinber 1&1. The traine is free to rock in a vertical plane, so that the ball inay roll from one end of the tube to the other, and the latter may slide back and forth between the stops 12, when the traine is rocked. To one end of the traine is connected a tloat 15, and each end ot' the tube is connected by a chain or other suitable iiexible device 16 to the handle 17 ot a cock 1S connected to the air pipe within the tank. rlhe air is discharged into the tank through the cock when the latter is opened. The lower end of the air pipe will be plugged up or otherwise closed.

In the top of the tank is an air exhaust port 19 to which an exhaust conducting pipe 2O is connected. The exhaust port is controlled by a valve 2l. which is hinged to the top ot the tank and is connected at its tree end, by chain or other suitable tlexible device 22, to one end o1 the tube 13. Freni the corresponding end ot the frainell is also suspended aweight To the top vot' the tank is secured a spring catch which i snaps over the free end ot the valve 21 when `the saine 1s closed, and holds it closed.

A. chain or other suitable tlexible device 25 also connects the tree end of the valve 21 to the top ot the tank and limits its downward or opening movement.

The operation of the apparatus is as toliows: Fig. 1 shows the position ot' the parts when the tank is filling through the inlet the cock 18 being closed, and the valve 21 open. The air supply is therefore shut oil'I from the tank, and the air contained therein is exhausting. It, will be noted that the right end of the traine has tilted downward, and the tube 131i and ball let have shifted to this end of the traine. When the water rising in the tank reaches the loat 15, the right end of the traine rises, and the lett end lowers. t hen the lett end ot the. traine drops below the horizont-al, the ball rolls down in the tube to that end and the tube also slides in the saine direction until it enga-ges the stop 12. This movement of the tube exerts a pull on the chain, where- A by the cock 18 is opened. The right end of the traine also strikes the valve 21 and closes the saine. Compressed an' now enters the tank and torces the wat-er troni the saine through the 'pipe v8 to the place of use. As the tank empties the float lowers and tilts the Jframe in the opposite direction, so that the tube and ball are now shifted to the right to close the cock and shut off the air supply. The downward swing of the right end of the frame also pulls the valve 2l open to permit the escape of air from the tank. The tank now again fills and the herein-described operation is repeated. The specic gravity of the weight Q3 should be slightly greater than that of the water, so that there will be but little resistance to the rise of the float when the .tank is filling. The weight serves to augment the downward pull of the iloat when the water is lowering in the tank and thus insures the closing of the cock 18 and the opening of the valve 2l at the proper time. The tube is closed' at its ends to prevent entrance of water, in view of which there is no danger of the ball getting rusty and sticking in the tube. In order to facilitate the movement of the tube, it is mounted on wheels 2S.

I claim:

l. In a fluid-pressure water elevator, a tank having a valved inlet, a fluid-pressure exhaust and inlet, a valve cont-rolling the Huid-pressure inlet, a float-actuated tiltable member in the tank and operatively connected to the fluid-pressure inlet valve, a valve controlling the exhaust, said exhaust valve being in the path ot' the tiltable member and closing by being engaged thereby, and a loose connection between the member and the exhaust valve to open said valve.

2. In a fluid-pressure water elevator', a tank having a valved inlet, a fluid-pressure exhaust and inlet, a valve controlling the fluid-pressure inlet, a float-actuated tiltable frame in the tank, a member carried by the frame and slidable thereon in the direction pressure inlet and the exhaust valves, and a weight loosely mounted in the tube.

t. In a fluid-pressure water elevator, a tank having a valved inlet, a fluid-pressure exhaust and inlet, a valve controlling the liuid-pressure inlet, a tiltable frame in the tank, a float carried b`y one end of the frame, a weight suspended from said end of the frame, a member carried by the frame and slidable thereon in the direction ot' its length when the trame tilts, and operating connecJ tions between the member and the fluid-pressure inlet and exhaust valves.

5. In a fluid-pressure water elevator, a tank having a valved inlet, a fluid-pressure exhaust and inlet, a valve controlling the fluid-pressure inlet, a float-actuated tiltable iframe in the tank, and having stops at its ends, a member mounted on said frame and slidable thereon in the direction ot' its length between the stops when the frame tilts, and operating connections between the member and the fluid-pressure inlet and exhaust valves.

In testimony whereof I affix my signature in presence of two witnesses.

ARTHUR O. EROI/VN.

`IVitnesses S. J. LEHRER, H. Gr. BA'rcHnLon.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C." 

